Improvement in lamps



IR.S.CHAP|N.

Lamp Burner.

No. 34.562. Patented March 4, 1862.

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UNITED STATES PATENT OFFICE.

R. S. OHAPIN, OF NEW YORK, N. Y.

lM PROVEM ENT IN LAM PS.

Specification forming part of Letters Patent No. 34,562, dated March 4, 1862.

To all whom it may concern.-

Be it known that I, R. S. CHAPIN, of the city and State of New York, have invented, made, and applied to use a certain new and useful Improvement in Lamps, adapted to burning coal-oil and other substances containing an excess of carbon; and I do hereby declare that the following is a full, clear, and

exact description of the said invention, reference being had to the annexed drawings,

making part of this specification, wherein- Figure 1 is a vertical section of my improvement, and Fig. 2 is an elevation of the wick-tube and section of the deflecting-cap.

Similar marks of reference denote the same parts.

In burning coal and other oils containing an excess of carbon it is necessary to supply oxygen in such proportion to the carbon consumed that the combustion shall be perfect or else smoke will ensue. Various devices have been made for supplying the requisite amount of atmospheric air to perfect the combustion.

The nature of my said invention consists in extending up a plate formed as a part of the Wick-tube or attached thereto, said plate rising above the upper end of the wick. This plate becomes a flame-spreader, for, as the flame rises from the wick, it draws against this plate as a base to the flame, and from which the flame rises in such a thin and uniform sheet that sufficient air has access to the flame, so as to furnish the requisite amount of oxygen in proportion to the carbon. This plate also serves as a conductor and heater to the wick-tube, so that the vapors consumed are generated in the wick-tube itself. I also make use of a deflecting-cap that will aid the action of the lamp by directing the air upon the flame.

In my lamp a glass chimney is not required, but might be used when preferred.

In the drawings, a is the wick-tube, fitted with any usual device b for raising and lowering the wick.

0 represents part of any usual reservoir or oil-receptacle.

1 is the plate at the side of the Wick-tube, forming the flamespreader and acting in the manner aforesaid to cause a very thin and even sheet of flame, so that the air can fully operate to produce a perfect combustion, and at the same time the heat will be conducted down the wick-tube and aid in volatilizing the oil.

01 is a chamber surrounding the wick-tube and provided with holes 2 2 at the base and the deflector e at the top. By reference to the drawings it will beseen that the top of the deflector e is the same shape as the top of the Wick-tube, so as to leave anarrow parallel opening between the upper edge of the plate 1 and said deflector e. The position of the deflector to the wick-tube is to be that shown in Fig. 1, the edge of the slot in the deflector being on one side directly over the edge of the plate 1, while considerable more space is allowed on the other side of the wick-tube.

The consequence is that the air, rarefied by the heat of the wick-tube and chamber (1,

passes up through the deflector, forcing the flame toward the plate 1 and the edge of the slot in the cap at that side, while the air passing between the deflecting-cap and the upper edge of 1 enters into the flame itself, promoting combustion.

By the use of the deflector or cap 6 on the chamber (1 the strength of the light is increased and the flame can be carried higher; but my lamp will work without the said deflector.

It Will be evident that the flame-spreading plate 1 mightbe applied to acylindrical wick, if desired.

I do not claim a wick-tube with a heating Y plate or wire applied thereto. Neither do I claim a deflector to admit more air on one side of the flame than on the other; but

I claim- In combination with the wick-tube, constructed as aforesaid, the deflecting-cap 6 applied in the manner and for the purposes specified.

As witness my signature this 8th day of May, 1861. R. S. .CHAPIN.

Witnesses:

LEM-UEL W. SERRELL, THOS. GEO. HAROLD. 

